Calibration of bus parameters in microsimulation traffic modelling


Zhang, Jing, Hounsell, Nick and Shrestha, Birendra (2012) Calibration of bus parameters in microsimulation traffic modelling. Transportation Planning and Technology, 35, (1), 104-117. (doi:10.1080/03081060.2012.635431).

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Description/Abstract

Microscopic traffic simulation models have advanced significantly in recent years and are now used extensively around the world for detailed traffic modelling where dynamic operations have to be represented. Whilst extremely powerful, these models can have substantial calibration requirements. This paper illustrates a new method of calibration of bus performance parameters as part of the ‘Gipps’ car-following model used within the microscopic simulation package Aimsun. This research looks at the impact of bus signal priority strategies on bus and traffic emissions. Calibration was undertaken using second-by-second bus performance data recorded automatically within the new iBus system in London. Results illustrate significant differences between some measured and default parameters, which in turn lead to some inaccuracies in emissions predictions for buses. Calibration is therefore essential and can benefit from the ever-increasing sources of automatic data emerging from new Intelligent Transport Systems applications

Item Type: Article
ISSNs: 0308-1060 (print)
Subjects: T Technology > TE Highway engineering. Roads and pavements
Divisions: Faculty of Engineering and the Environment > Civil, Maritime and Environmental Engineering and Science > Transportation Research Group
ePrint ID: 300642
Date Deposited: 24 Feb 2012 14:42
Last Modified: 27 Mar 2014 20:19
URI: http://eprints.soton.ac.uk/id/eprint/300642

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